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<H1>CLD -- Clear Direction Flag</H1>

<PRE>
Opcode    Instruction     Clocks   Description

FC        CLD             2        Clear direction flag; SI and DI
                                   will increment during string
                                   instructions
</PRE>

<H2>Operation</H2>

<PRE>
DF := 0;
</PRE>

<H2>Description</H2>

CLD clears the direction flag. No other flags or registers are affected.
After CLD is executed, string operations will increment the index registers
(SI and/or DI) that they use.

<H2>Flags Affected</H2>

DF := 0

<H2>Protected Mode Exceptions</H2>

None

<H2>Real Address Mode Exceptions</H2>

None

<H2>Virtual 8086 Mode Exceptions</H2>

None


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